diff options
Diffstat (limited to 'stmhal/stm32f4xx_it.c')
| -rw-r--r-- | stmhal/stm32f4xx_it.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/stmhal/stm32f4xx_it.c b/stmhal/stm32f4xx_it.c index 5fa7f8289d..4bd13c05cb 100644 --- a/stmhal/stm32f4xx_it.c +++ b/stmhal/stm32f4xx_it.c @@ -174,6 +174,11 @@ void PendSV_Handler(void) { */ void SysTick_Handler(void) { HAL_IncTick(); + + // Read the systick control regster. This has the side effect of clearing + // the COUNTFLAG bit, which makes the logic in sys_tick_get_microseconds + // work properly. + SysTick->CTRL; } /******************************************************************************/ |